Printing mechanism for adding machines



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PRINTING MECHANISM FOR ADDING MACHINES Filed Aug. l2, 1946 12 Sheets-Sheet 8 INVENTOR. GRANT C. ELLEREJECK Feb. 19, 1952 G. c. ELLERBECK PRINTING NECHANISN FOR ADDING MACHINES 12 Sheets-Sheff(l 9 'Filed Aug. l2, i946 ,Awlmrmml IN VEN TOR.

GRANT C. ELLERBECK Feb. 19, 1952 G. c. ELLERBECK PRINTING MECHANISM FOR ADDING MACHINES 12 Sheets-Sheet 10 Filed Aug. l2, 1946 JNVENTOR. GRANT C. ELLERBECK G. C. ELLERBECK A PRINTING MECHANISM FOR ADDING MACHINES Feb. 19, 1952 Filed Aug. 12, 194e 1-2 Sheets-Sheet 1l y m n @Hlm-MHH@ INVENTOR.v GRANT C. ELLERbEcK l2/l Feb- 19, 1952 G. c. ELLERBECK 2,586,420

PRINTING MECHANISM FOR ADDING MACHINES Filed Aug. 12, 1946 12 Sheets-Sheet 12 m I m d I N a w" FI I=I N E N m UI CO O Fi Q E III INVENTOR. 1Q GRANT C ELLEREcK Patented Feb. 19, 1952 PRINTING MECHANISM FOR ADDING I MACHINES Grant C. Ellerbeck, Hayward, Calif., assigner to Friden Calculating Machine Co., Inc., a corporation of California Application August 12, 1946, Serial No. 690,004

11 Claims. 1

This invention relates to business machines.

An object of the invention is to provide a business machine having a keyboard in which values may be set and a plurality of totali'zers in which a value set in the keyboard can be selectively registered either additively or subtractively, together with a grand totalizer which, during registering operations always reflects the sum of the totals in the individual totalizers, as claimed in the divisional application S. N. 101,007 led June 24, 1949, with a mechanism for printing a value entered into any one of a plurality of totalizers and printing a total standing in any one of these same totalizers.

A primary object of the present invention is to provide an improved printing mechanism for a calculating machine.

Another object of the invention is to provide a printing mechanism for recording a value entered into each of one or more item totalizers and a grand totalizer upon depression of a key which selects the corresponding item totalizer for entry.

Another object of the invention is to provide a mechanism for printing any item set on the keyboard and any total standing in the totalizers wherein the two lowest orders are always printed while only the higher orders up to the first significant iigure are printed.

Another object of the invention is to provide a mechanism for printing a character to indicate the selected item totalizer and a mechanism for printing a symbol to denote the sign character of the keyboard entry.

Another object of the invention is to provide a business machine having a single selection control mechanism for controlling the rigistration of a keyboard value in the item totalizer and grand totalizer, for eiecting a tens-transfer in these totalizers, and for setting the type in the printingv mechanism to correspond to the value in the keyboard, which type setting control is immediately thereafter disabled so that the tens-transfer is effective in the totalizers only.

A further object of the invention is to provide a single registration control mechanism for controlling the registration in a plurality of totalizers.

Other objects of the invention will be evident after the following disclosure.

In the drawings:

Figure 1 is a front view of a machine in which the invention has been employed.

Figure 2 is a partial vertical longitudinal section through the machine taken as indicated by the line 2-2 in Figure 1.

Figure 3 is a detailed view taken as indicated by the line 3-3 in Figure 2.

Figure 4 is a partial vertical longitudinal section taken on the line 4-4 in Figure 1.

Figure 5is a partial vertical longitudinal section taken on the line 5-5 in Figurey 1.

Figure 6 is a planyiew "of the mechanism disposed in the rear part of the machine with the cover removed and parts broken away. The direction inwhich the view is taken is indicated by the line 6-6 in Figure 2.

Figure '7 is a partial rear elevation ofthe machine with the cover removed and parts broken away. IThe direction in which the view is taken .is indicated by the line 1--1 in Figure 2.

Figure 8 is a fragmentary-vertical transverse section taken as indicated by the line 8-8 in Figure 2.

Figure 9 is a fragmentary view of the parts disposed behind parts shown in Figure 5.

Figure 10 is a left side elevation with the cover removed and parts broken away. The direction of the view is indicated by the line l0-l 0 in Figure 1.

Figure 11 is a fragmentary vertical longitudinal section taken as indicated by the line I l-l I .in Figure l.

General description In constructing the machine I have employe the keyboard, selecting mechanism and the registration control mechanism comprising the digitation mechanism, the transfer mechanism and the reversing mechanism employed in the Friden calculating machine. For a complete disclosure of this part of the mechanism reference is to be had to 'the patent to Friden 2,229,889 issued January 28, 1941. This portion of the mechanism will be described rst and thereafter I will describe how this basic registration control mechanism is utilized to cause registration in any selected one of a plurality of totalizers and in a grand totalizer.

Referring to Figure 1, the machine is provided with a suitable casing |00 and has a 3 conventional keyboard comprising a plurality of rows of numeral keys numbered 0 to 9. A plurality of totalizers ||2, H3, H4, ||5, ||0, ||1, H8, ||9 and a grand totalizer |20 are arranged in a row at the top of the machine and have dials bearing numerals which are visible through suitable windows provided in the casing |00. After a number has been set up on the keyboard |0| the operator determines in which totalizer the number is to be registered and for this purpose a series of totalizer keys |2|, |22, |23, |24, |25, |26, |21, |28, |29 are provided, also the item may be registered additively or subtractively in the selected totalizer by setting the lever |30 either in the add or subtract position. For example, if `the lever |30 was set in the add position and a number had been set on the keyboard |0| when the operator depressed the totalizer key |23 the value set on the keyboard would be additively registered in the totalizer ||.3, and it would also be additivelv registered in the, arendr totalizer.- |20. If the lever |30 .had been set. inV they subtractrostion the value would be VSdibtractveli! registered in the Selected totalizer and in the grand totalizer Se that during a. .Series 0f registering Opera-tions. assuming all of. the totalzers. had been cleared at the beginning of the operation, the grand tOtalizer will indicate the sumr of all the totals in the individual totalizers ||I to H0..

At the, saine time the. value set in the keyboard is. registered it is, printed on a paper tape |3 which appears in a window |32 in the casing. AS` shown in Figure 1 the item` 217.23` had been set on thef keyboard |0.-| andthe totalizer key had. been depressed with the control lever in the subtract position, the figure 9" at the, left edge of the tape. indicates the number of the totaliZer in which the value 217.23 was registeredV and the sign of the registration is indicated by the-.minus signv thereafter. The printing` mechanism which will presently be described is indirect in operation, that is, all of the printing mechanism is disposed below the tape |3|.

This method; of` printing was first disclosed and g claimed in my co-pending application Serial No. 502,379, now Patent 2,405,562, issued August 13, 1946.

When the operator desires to take an individual total he moves the.v Control lever |30 to the "total position and copies the ligure appearing in the individual totalizer to the keyboard and presses the associated individual totalizer key. This causes the value to be subtracted from the individual totalizer thereby clearing the individual totalizer, but the figure isnot subtracted from the grand totalizer, and the total taken is printed on the tape |3|. In order to take a grand total the same procedure is followed and the grand total' key |40 is depressed, This causes the figure standing in the grand totalizer to be subtracted, thereby clearing the grand totalizer.

If` desired, my machine can be employed as a cash register and' for this purpose is provided with a cashdrawer |4|.

Having now described in general the arrangement and operation of my machine I will explain its construction in detail.

Registration control mechanism Referring to Figure 2,4 depression of the numeral key |42 in the keyboard 0| Causes differential movement of either of two slides- |43, |44 which move selector gears |45, |46 in the path of segmental gears |41 secured to actuator shaft |40 so that upon rotation of the shaft |48 a square shaft |50, on which the selector gears |45 and |46 are mounted will be rotated a differential amount corresponding to the key |42 depressed. This is the digitation part of the registration and occurs in the first part of the cycle. The transfer occurs in the latter part of the cycle and is effected by shifting the transfer gear |5| which is mounted on the square shaft |56, into the path of a transfer tooth |52 on the actuator shaft |46. This causes the added increment of i to be imparted to the square shaft |50. The actuator shafts |48 are driven by means of bevel gearing from drive shaft |53 which is unifdirectional in operation so that the square shafts are also uni-directional in operation. In order to obtain positive o1 negative registration areversing gear is employed which comprises a pair of'bevel gears |54-, |55 integrally connected by a Sleeve |50` ,sutiable 0n the square shaft |50. As shown. the gear |54 is engaged with. a bevel gear |51 (seealso Fis. 3) which is secured to apinion |56 (Fis. 2;) which is constantly in mesh with a pinion 5.0 rotatable on a shaft |60. Secured to the shaft |60 are a series of arms |6|, one,A for each reversing gear |54|55 so that rotation of the shaft |60, in a clockwise direction in Figure 2, will cause Shifting of the reversing gears |54|55 to engage the bevel gears with the bevel gears |51 to cause positive registration. As shown in Figure 2 the reversing gear is in the negative registration position.

The registration control mechanism. described above is substantially identical to the aforementioned patent to Friden 2,229,889.

Sign control In this machine the sign control is preset prior to registration and comprises the lever |30 (Figs. 1 and 11) which as shown is in the subtract position. This lever is pivoted in the framework at |62 and is connected by a link |63 with a pla-te |64 rotatably mounted on the shaft |60. The shaft has secured thereto an arm |05 provided with a pin |66 which is normally held in engagement with a hook |61 on the plate |64 by a spring |68. The plate |04 is provided with a detent |60. As shown the parts are positioned in the subtract position. In order to determine additive registration the control lever |30 is moved rearwardly, that is clockwise in Figure ll, which causes the plate |64 to be rotated clockwise and the hook |01 engaging the pin |00 rotates the arm |65 and shaft |60 clockwise. This causes shifting of the reversing gears |54-,-l55, as previously described, to the additive position. If the control lever |30 and the reversing gears |54r|55 are in their additive positions, and the lever |30 is then rocked to the subtractive position shown in Figure 1,1, the pin |66 on the arm |65 is held against the hook |61 by the spring |68, thus causing the arm |65 and shaft |60 to follow the plate |64 and rock counter-clockwise. This will shift the reversing gears |54-|55 to the P0- sition shown in Figure 2.

Drive The machine4 is provided with a motor |10 (Fig. 4,) whose armature shaft |1| has aV worm |12 thereon engaging a worm wheel |13. The worm wheel |13 is connected by means of a sleeve |14 to a ratchet wheel |15 (Fig. 5) of I'a pawl and ratchet clutch |16.

`mounted at |19.

v |98 and a sleeve |99.

'I'he pawl |11 of the clutch is normally held disengaged from the ratchet wheel by a control lever |18 pivotally Clutch control lever |18 is connected by a link |80 to a lever |8| having pin and slot connection |82 with a lever |83 having a fiber pin |84 therein which extends through an opening in the frame (Fig. 9)v for operating the motor switch |85. A spring |86 (Fig. 5) normally urges the parts to the positionv shown where the switch |85 is open and the clutch |16 is disengaged. Clockwise rotation of the control lever |18 (Fig. 5) by means hereinafter described causes closure of the switch |85 and engagement of the clutch |16.

The driven side of the clutch is secured to the previously described transversely extending main drive shaft |53.

Totaieers The machine is provided with a plurality of item .totalizers to ||9 and a grand totalizer |20. All of these totalizers are of substantially identicalconstructicn although they may vary in capacity, so that a description of one will .suflice Each totalizer comprises a plurality of Registration transmission mechanism 1t will be recalled that the conventional registration control mechanism has been described as comprising a keyboard (Fig. l) having -six rows of keys which control the setting of digitation gears |45, |46 (Fig. 2) on square shafts |50, of which in this instance there are six, one for each row of keys, and that each of these shafts is provided with a transfer gear and ya reversing gear so that in each orderof the registration control mechanism lrneans are provided for selectively controlling the differential rotation and direction of rotation of a gear |59. There are six gears |59 on the shaft |60. In order to selectively transmit the rotation of these gears to any selected totalizer and the grand totalizer a registration transmission mechanism is provided. This comprises a plurality of series ofr ordinal actuator gears, there being one series for eachvtotalizer, and means for causing like movement of all gears of like order. For example, associated with totalizer ||3 (Figs. l and 2) which has a capacity of six orders, there are six actuator gears 202, 203, 204, 205, 206 (Figs. 2 and 6) the gear 20| being in the units order, the gear 202 in the tens order, etc. All of the units order gears 20| are geared together by means of pinions 2|| on a square shaft 2|2. For example the units order actuator gear in totalizer ||3 isconnected 'to the units order gear 20| and the totalizer ||5 by means just described as can be seen in Figure 7. Similarly, the gear 202 in the tens order of totalizer ||3 is connected to thetens order gear 202 in the totalizer ||5 and ft'o all othertens order gears by means of pinions yon a square shaft 222.

2|3 on square shaft 2|4. All of the hundreds order gears 203 are connected together by means of pinions 2|5 on square shaft 2| 6. All of the thousands order gears 204 are connected together by pinions 2|1 on a square shaft 2|8; and all of the ten thousands order gears 205 are connected together by pinions 2|9 on a square shaft 220. As previously stated, the totalizers may valy in capacity. In the form shown, the item totalizers ||2, ||4, ||5, ||6, ||1, and ||8 all have rive orders, and item totalizers H3, ||9, and grand totalizer |20 all have six orders. The pinions 2||, 2|3, 2|5, 2|1, and 2|9, and the square shafts 2|2, 2|4, 2|5, 2|8, and 220 just referred to provide for concurrent operation of the actuator gears 2|0, 202, 203, 204, and 205 of corresponding orders of the first five orders of each item totalizer and the grand totalizer. The sixth order actuator gears 206, in the item totalizers H3, ||9 and the grand totalizer |20 only, are operatively connected by pinions 22| The registration transmission mechanism receives its motion in the following manner. The square shaft |50 in the units order, that is, the square shaft associated with the units order in the keyboard, transmits its registering movement to the pinion '|59 fin mesh with the units order gear 20| in the totalizer I8 and this motion is transmitted via the pinions 2| on the square shaft 2|2 to all the units order gears 20| in the other totalizers including the grand totalizer. The square shaft |50 associated with the second order of the keyboard transmits its motion to the actuator gear 202 in the totalizer ||1 which in turn transmits the same motion via the gears 2|3, the square shaft 2|4 to all the other tens gears 202, etc. It will be understood that for every revolution of the main driveI shaft |53 the differential rotation of the shafts |50 is transmitted to all of theY actuator gears so that, for example, all of the units order gears 20| rotate in unison, all of the tens order gears 202 rotate in unison, etc.

Totalizer keys v |23 clockwise through the urgency of the spring |25 rocks the frame work in which the totalizer is mounted counter-clockwise about the shaft 200, engaging the gears |88 of the totalizer with the actuator gears. A detent 223 which nor,- mally centralizes the numeral wheel and restrains it from rotation is removed from engagement with the gear |88 when the framework is rocked counter-clockwise by a fixed transversely extending rod 224. The engagement of the detent 223 with the rod 224 normally holds the associated actuator framework |90|99 in the inactive position shown in Figs. 2 and 5.

Depression of the key |23 also initiates the drive as will now be explained. Each of the item totalizers and ||9 has associated therewith a plate 230 rotatably mounted on a shaft 23| and urged clockwise by a spring 232.` The construction and operation of these plates is the same with respect to eachtotalizer so a de- `2, the plate 230 has a shoulder 233 which engages the tie rod |92 to latch the plate 230 in its Figure 2 position and to assist in holding the totalizer framework in the position shown, that is, with the totalizer gears out of rnesh with the actuator gears. However, upon depression of the key |23 the rod |92 is removed from contact with the shoulder 233 and the spring 232 rotates the plate 230 clockwise so that a shoulder 234 engaging a roller 235 on an arm 236 secured to a shaft 231 causes counterclockwise rotation of .the shaft 231. Each plate 239 has an arm4 236 associated therewith and all of the arms 236 are secured to the shaft 231. The right end (Fig. 5) of the shaft 231 has `secured thereto an arm 238 having pivotally connected thereto link 239 which has a pin and slot connection 249 at its forward end with clutch control lever |18. Thus it will be seen that depresslon of the key |23 (Fig. 2) will unlatch the spring-urged plate 230 which rocks the shaft 231 counter-clockwise causing the link 23S (Fig. 5) to be drawn'rearwardly to rock the clutch control arm |18 clockwise and cause closure of the switch and engagement of the clutch whereupon the shaft |53 rotates.

The registration transmission mechanism is normally locked. Referring to Figure 5 the actuator gears such as 203 associated with the grand totalizer |20 are constantly in mesh with pinions 24| integral with gears 242 which are locked by a bail 243 pivoted at 244. One arm 245 of the bail appears in Figure 5, the other arm 246 appears in Figure 4. The bail 24-3 is normally urged counter-clockwise (Fig. 4) by a lever 241 pivoted at 244 having pin 248 which engages the arm 246, the lever 241 being urged counter-clockwise by the spring 249. In the full cycle position of the clutch a cam 250 secured to the main drive shaft |53 engages a pin 25| in the lever 241 which, through a spring 252 urges the bail 243 clockwise (Figure 4) or counterclockwise as viewed in Figure 5 to lock the gears 242 and thereby lock the entire registration transmission mechanism. However, as soon as the clutch |16 is engaged the cam 250 (Fig. 4) rotates and the lever 241 is free to move under the influence of its spring 249 thereby withdrawing the locking bail 243. Rotation of the shaft |53 causes operation of the registration control mechanism and through the registration transmission mechanism just described causes entry of the value set in the keyboard I0| in the selected totalizer.

This occurs during the digitation phase of the first part of the cycle. The transfer occurs in the latter part of the cycle. It will be recalled that the transfer movement is transmitted to the shaft |50 (Fig. 2) by a transfer gear |5| having been moved to the path of the 'transfer tooth |52 on the actuator shaft |48.

In accordance with my invention a single series of ordinally arranged registration control mechanisms, that is, the square shafts |58 and the pinions |45, |46 and |5| thereon serve, through the registration transmission mechanism previously described, to service any selected totalizer. This is true not only of the digitation partof the registration, but the transfer part also as will nowbe described.

When any selected totalizer such as totalizer ||3 (Figs. 2, 6 and 8)' isl moved into engagement 'with its'actuator gears by depression of the key |23, a transfer tooth 260 on the numeral wheels in the totalizer, except the highest order, is moved into cooperative relationship with a transfer lever 26| pivoted on a shaft 262. All of the transfer levers 26| associated with the units order numeral wheels in the totalizers are secured together by transversely extending rods 263 and also rigidly secured to the rods 263 is a lever 264 (Fig. 8) having a pin 265 which engages the hanged portion 266 of the transfer gear |5| on the square shaft in the tens order. From this it will be apparent that whenever any totalizer is in registering position and the units order numeralA wheel passes through 0 to 9 position the associated transfer lever 26| will cause rocking of the rods 263 and the lever 264 to move the transfer gear |5| in the tens order of the registration control mechanism to operative position so that in the transfer phase of the cycle a transfer movement will be transmitted from the tens order square shaft |59 through the registration transmission mechanism to the totalizer in registering position.

Similarly, the numeral wheels in the tens order of the totalizers have transfer teeth adapted t0 cooperate with transfer levers 261 which are rigid- 1y connected together by transverse rods 268 having secured thereto a lever 269 (Fig. 8) which serves to set the flanged portion 266 of the transfer gear |5| in the hundreds order of the registration control mechanism. In this same manner transfer mechanism is provided for the higher orders of all the totalizers.

In each registering operation of the machine the main drive shaft |53 revolves twice. During the first revolution the value set in the keyboard |9| is registered in the one of the item totalizers to H9 which has been selected by depression of one of the keys |2| to |29. In the second revolution the same value is entered in the grand totalizer |28.

The main drive shaft |53 is automatically caused to rotate twice lby the following mechanism. The main drive shaft |53 (Fig. 9) has a pinion 210 engaging a gear 21| having a pin 212 thereon. 'Ihe gear 21| rotates once for two revolutions of the pinion 219 so that prior to the conclusion of the first revolution of the shaft |53 the pin 212 engages an arm 213 pivoted to the frame at 214 and rocks it clockwise. The arm 213 has a pin 215 secured thereto which passes through a slot in the frame and engages in a slot 216 of a link 211 (Figure 5) pivoted at 218 to the clutch control lever |18. When the clutch control lever |18 is rocked clockwise (Figure 5) to engage the clutch the link 211 is drawn forwardly, moving a tail 219 thereon forwardly of a fixed pin 28|) so that when in the course of the first cycle the pin 215 is moved upwardly, it disposes the tail 219 in front of the pin 280 thereby locking the clutch control lever |18 from disengaging' the clutch at the end of the first revolution. As will be evident in Figure 9, in the course of the second revolution the pin 212 releases the lever 213 so that the tail 219 (Fig. 5) is lowered below the pin 289 by gravity or by a conventional restoring spring (not shown) so that at the end of the second revolution the spring |86 may move the clutch control lever |18 counter-clockwise to disengage the clutch.

At the conclusion of the first revolution the item totalizer is disengaged from the actuator gears. This is accomplished by the following mechanism. The main drive shaft |53 (Fig. 10) has a pinion 28| secured thereto engaging a gear 282 which meshes with an idler gear 283 engaging a gear 284 secured to a cam 285. Thisl gear train 9 i causes one revolution of the cam 285 for two revolutions of the shaft |53. Cam 285 is shown in the full cycle position of the parts, and after 180 rotation clockwise engages a roller 286 on a bellcrank 281 connected by a link 288 with an arm 289 secured to shaft 231 causing the shaft 231 to be rocked counter-clockwise as viewed in Figure 10, or clockwise as viewed in Figure 2.

This clockwise rotation of the shaft 231 causes the arms 236 to rotate clockwise (Figure 2) and the plate 230 associated with the totalizer which had been in the operative position is rotated counter-clockwise. The plate 230 has a portion 290 which moved under the rod |92 when the plate 230 Was unlatehed and this portion served to hold the totalizer gears in engagement with the actuator gears. When, as just described, the plate 230 is moved counter-clockwise it releases the rod |92 and a portion 29| engages the rod |92 and positively rocks the totalizer supporting framework clockwise to remove the totalizer gears from engagement with the actuator gears. At the end of the second revolution of the shaft |53 (Fig. 10), or at the end of the revolution of the cam 285, the roller 286 is free and the plate 230 (Fig. 2) returns to the position shown under the influence of a spring 232.

Grand totalzeer At the beginning of the second cycle of the main drive shaft |53 (Fig. 4) the grand totalizer is automatically moved to registering position. The shaft |53 has a pinion thereon (not shown) engaging a gear 292 having a cam 293 secured thereto. The cam 293 makes one revolution for every two revolutions of the shaft |53. Cam follower 294 is rocked counter-clockwise on its pivot 295 after the cam 293 is rotated 180 clockwise. The cam follower 4294 normally engages a pin 296 on a member 291 resiliently mounted on a link 298 pivoted to the tie rod |93 of the grand totalizer sup-porting framework. By means presently to be described, the pin 296 is normally disposed in cooperative relation with the cam follower 294 as shown in Figure 4 so that cam 293, through the action of the cam follower 294, causes the totalizer |20 (Fig. 5) to be moved into engagement with its actuator gears during the second revolution of the drive shaft |53. During this revolution the value set in the keyboard is registered in the grand totalizer |20 and in the latter part of the second revolution any transfers which may occur in the grand totalizer are effected in the same manner and by the same means already described. Thus it will be seen that the registration control mechanism serves during the first cycle of the operation to cause registration in one 'of the item totalizers to ||9 and during thesecond revolution controls the registration of the same value in the grand totalizer |20 and also effects any transfer which may occur there.

Taking `totals AIn order to take a total from any totalizer the control lever |30 (Fig. l) is moved to the total position. Usually in a business machine of this character total taking is done at the conclusion of a related series of operations, as for example, at the conclusion of a days work so that usually all of the totalizers are cleared one by one. In this machine totals are taken by copying the number from the totalizer to the keyboard and then depressing the totalizer key. This causes, in the case of the item totalizer, substraction of the -value from the totalizer leaving the totalize clear, but without substracting the value from the grand totalizer. This, of course, is to preserve the grand total. As previously described, during registering operations when the control lever |30 is either in the add or subtract position items registered in any selected item totalizer are also registered in the grand totalizer.

Referring to Figure 11. When adjusting the control lever |30 to the total position it is moved counter-clockwise from the position here shown. This causes counter-clockwise rotation of the plate |54. If the lever |65 is already in the subtract position, as shown, it Will remain there, the hook |61 merely leaving the pin |66. If the plate |64 and the arm |65 are in their add positions, and the plate |64 is rocked counter-clockwise to the total taking position, the spring |68 will cause the lever |65 to follow,

thereby rocking the shaft counter-clockwise and shifting the reversing gears |54|55 to the subtract position shown in Figure 2. If, at the start of this operation, the arm |65 should not respond to the pull of the spring |68, a shoulder 300 on the plate |04 will engage the pin and positively start rocking of the arm |65 and shaft |60.

It will be recalled that the shaft |60 controls the registering mechanism as well as the reversing gears. Therefore, with the control lever |30 in the total position, values copied from the item totalizers to ||9 (Fig. 1) to the keyboard |0I, will, upon depression of the totalizer keys |2| to |29, subtract the totals therefrom.

While totals are being taken from the item totalizers, the grand total is maintained in the grand totalizer |20 by the following mechanism. Referring to Figure 4, it will be recalled that the automatic movement of the grand totalizer to registering position depended upon the pin 296 being in cooperative relation with the follower 294. Referring to Figure 11, the pin ,296 is normally urged to this position by a spring 30| which holds the pin against the side of a slot 302 in the frame. The pin 296 is disposed in the lower forked end 303 of a lever 304 pivoted at 305 having a shoulder 306 and a pin 301 thereon. When the lever |30 is moved counter-clockwise from the position shown in Figure 1l the link |63 moved to the left. This link has a lever 308 pivoted thereto at 309 and urged counter-clockwise by a spring 3|0 so that the upper edge of the lever 308 engages the pin 301. When the link |63 is moved to the left, a shoulder 3|| on the lever 308 engages the pin 301 and rocks the lever 304 counter-clockwise to move the pin 296 rearwardly so that it is moved out of cooperative relation with the follower 294 (Fig. 4).

To take a grand total, however, pin 296 must be restored to its normal position, and this is effected by a lever 3 2 which rotates in unison with the grand total key |40 so that upon depression of the grand total key |40 with the level |30 set in the total taking position, a pin 3 3 on the lever 3|2 will engage a tail 3 |4 on a lever 308 and rock the lever 308 clockwise on its pivot to disengage the shoulder 3| from the pin 301, thereby releasing the lever 304 and permitting the pin 296 to return to its operative position under the influence of its spring 30|. The lever 3|5 has a nose which is disposed between the shoulder 306 on the lever 304 and a nose 3|6 on the lever 3|2 so that with the control lever |30 in either the add or subtract position the grand total key |40 assenso cannot be depressed. When, however, the control lever is moved to the total taking position and the lever 364 is rotated counter-clockwise, it rotates the lever 3|5 counter-clockwise, removing the nose thereof from the path of the nose 3|6 on the lever 3 2. It will be evident that depression of the grand total key (Fig. 5) will rock an integral depending arm counter clockwise, thereby rocking the clutch control lever |18 through the pin 218 to engage the clutch and close the motor contacts.

It will be understood that in taking totals from the item totalizers to ||9 the subtraction of the valve from the totalizer occurs in the first revolution, and the second revolution is an idle revolution because the grand totalizer is not moved into registering position. On the other hand, in taking a grand total, the first revolution is an idle revolution and in the second revolution the value is subtracted from the grand totalizer.

Printing As previously stated, each item entered into the item totalizers and the grand totalizer is printed on the tape |3| (Fig. 1) together with an identifying character to show whether it was added or subtracted, and in which totalizer it was registered. The totals are also printed. Because of the fact that totals are taken by copying the figures from the totalizers to the keyboard, totals as well as items can be printed in the same manner, that is, any figure set in the keyboard is printed when any of the item totalizer keys |2| to |29 are depressed during registering operations, and whenever any of these and the grand total key |40 are depressed when taking totals.

Referring to Figure 2. Each square shaft has a sleeve 330 slidable thereon and rotatable therewith. Integral with each sleeve 330 is a bevel gear 33| which, when the machine is at rest, is in engagement with a bevel gear 332. Bevel gears 332 have spur gears 333 integral therewith which engage gear sectors 334pivoted on a common shaft 335. vIntegral with each gear sector 334 is a gear sector 340engaging a pinion 34| on a square shaft 342. It is to be understood that in each order of the selecting mechanism the mechanism just described is duplicated so that at the outset of the operation the square shafts |50 are geared to the transversely extending square shafts 342 and they remain geared thereto during the digitation phase of the first cycle in order to transmit to the shaft 342 differential movements respective of the value set in the keyboard.

Prior to the transfer phase in the rst cycle,v

however, all of the bevel gears 33| are disengaged from the bevel gears 332. For this purpose each sleeve 330 is engaged by a'n arm 343 secured to a common shaft 341i. Referring to Figure l0. The left end of the shaft 344 has secured thereto a cam follower 345 which cooperateswith a cam 346 secured to the gear 282. The gear 282 rotates clockwise, as shown in Figure 10, at onehalf the speed of the main drive shaft |53 so that after the digitation phase of the first cycle cam 346 rocks the follower 345 of the shaft 344 counter-clockwise to move the arm 343 (Fig. 2) clockwise thereby disengaging the bevel gears.

Square shafts 342 extend transversely to the right side of the machine where, as shown in Figure 12, they are connected by pinions 350 to gear segments 35|, rotatably mounted on a shaft 352. Each gear segment 35| has formed integrally therewith a gear segment 353 engaging' a rack (not shown) on a type bar 355 slideable on a shaft 356. Each gear segment 35| is connected to its type bar 355 by a spring 351 which maintains the gear segment 353 and the rack (not shown) in mesh. Mounted on each type bar 355 are individual type 360 bearing numerals 0 to 9 as shown in Figure 16. It is to be understood that during the digitation phase of the first cycle the type bars 355 are differentially displaced amounts corresponding to the value in the keyboard so that after the type bars have been set the type 360 bearing the required numeral is disposed between a fixed transverse platen 36| and a hammer 362, there being a hammer 362 for each type bar 355.

Before the bevel gears 33|, 332 are disengaged the setting of the type bars is retained therein by the following mechanism. Each gear segment 35| (Fig. 12) has engaged therewith a pinion 363 (Fig. 14) and an aligner wheel 364. All of the aligner wheels 364 are engaged by a common bail 365 after the type bars have been set. The bail 365 is connected byA a link 366 to a gear 351 meshing with the gear 310 on a shaft 31|. The shaft 31| (Fig. 1l) has agear 312 thereon which engages an intermediate gear 313 whichv meshes with the gear 314 on the main drive shaft |53. Interconnecting the gear 312 and a disk 315 on the shaft 31| (Figure 12) is a rod 316 which is shown in the full cycle position where it engages lever 380 pivoted at 38| on gear sectors 35| and locks the sectors and hence the type bars 355 in inactive positions. The levers 380 are springurged counter-clockwise. When the drive is initiated the drive shaft 31| turns counter-clockwise (Fig. 12) and the rod 316 is disabled to release the levers 380 so that the gear sectors 35| are free to be set. At the conclusion cf the cperation the rod 316 engages the levers 380 and restores all the gear sectors 35| to their normal position.

The type hammers 362 are pivotally mounted on a xed shaft 382. Each hammer 362 overlies a pin 383 on a bellcrank 384 rotatably mounted on the shaft 382. A spring 385 is attached at one end to the pin 383 and at the other end to a pin 386 in the hammer; The bellcrank 384 is connected by a spring 390 to a fixedrod 39|. Each hammer 362 has ahook 392 pivoted. thereto at 3,93. When a. hook. 392 is` disposed in active position it is adapted to. be engaged by a bail 394 secured to a shaft 395. Shaft 395 has an arm 396 (Fig. 14) secured thereto which is connected by a link 391 to an arm 398 on shaft 31| so that` upon rotation ofthe shaft 31| the bail 394 picks up all hooks 392 inthe active position and holds the hammers 362c0nnected thereto downwardly, tensioning their springs 390 until the hooks slip off the bail 394 and the springs 390 cause the hammers 362 to'strike the type 360. The type strikes the underside of the paper tape |3|. The ribbon 400 passes around the fixed platen 36| and is disposed between the platen and the upper surface of the paper. The impression is taken from the ribbon and appears on the upper face of the, paper; This indirect mode of printing is disclosed in my co-pending application Serial No. 5025379, now Patent No. 2,405,562, issued August 13, 1946.

The hammers 362 are so arranged that the rst two orders are always printed while the higher orders areprinted only up to the first significant figure. For this purposethe hooks 392 in the first two orders (see Fig. 16) are connected by springs 40| toi'pins 402 on the corresponding hammers. Pins 403 limit their movement. Springs 40| thus serve to hold the hooks 392 in the first two orders in their rearward or active position where they are always picked up by the bail 394. The hook 392 in the third order (see Figs. 13 and 16) has a spring 404 which normally positions it in the inactive position. On its higher order side this hook has an ear 405 which cooperates with a pin 406 on the hook 392 in the next higher order and all of the hooks in the higher orders are similarly provided with ears 405 on their higher order side, and pins 406 on their lower order side. As a result, in the normal position of the parts the spring 404 holds not only the hook 392 in the third order in its inactive position, but also all other higher order hooks because of the engagement of the ears 405 with the pins 406. Associated with each of the pins 406 is one arm of a bellcrank 401. These bellcranks are rotatably mounted on a shaft 408, and the other arm of each bellcrank is connected by a spring 409 with a 4pin 4|0 on the associated gear sector 35|. In the normal position of the parts, counter-clockwise rotation (Figure 12) of these bellcranks 401 under the influence of their springs is prevented` by pins 4|| on the gear sectors 35|. Setting of therst significant figure causes rotation of the gear sector 35| in that order and removal of the pin 4| I, permitting the spring 409 to rotate the bellcrank 401 which, in engaging the pin 406, moves the associated hammer 392 and all lower order hammers into active position. In this manner printing of ciphers to the left of the iirst significant figure is avoided.

In order to print a symbol to identify the character of the operation,` a type bar 420 (Figs. 14 and 16) is provided bearing the plus, minus and asterisk signs. The lever |30 (Figs. 11 and 14) which is set to the add, subtract and total positions has a pin 42| engaging in a V slot 422 in an arm 423 secured to a shaft 424. Also secured to the shaft 424 (Fig. 14) is an arm 425 having three recesses 426, 421, 428 into which a pin 430 on the type bar 420 enters when the type bar is set. The type bar has integral therewith a rack 43| engaging a gear segment 432 integral with a gear segment 433 which has a spring 434 at` tached thereto. When the gear segment 433 is released for movement, the spring 434 rotates it clockwise, moving the type bar 420 rearwardly until the pin 430 seats in one of the recesses 426, 421, 428 which serves to position the symbol.

In order to identify the totalizer, a type bar 435 (Fig. 16) is provided having type from 1 to 9. Type bar 435 is urged rearwardly in the same manner' as the type bar 420 and has a pin 435 thereon which engages one of the series of steps 431 (Fig. 11) in a plate 438 secured to the shaft 305. Shaft 305 (Fig. 10) has an arm 440 thereon to which is secured a spring 44| which urges the shaft 305 clockwise in Figure 10, or counterclockwise in Figure 2. Disposed beneath each rod |98 in each totalizer framework is a cam arm 442 secured to the shaft 305. The cams arms 442 are so arranged that the shaft 305 will be rotated different amounts for different totalizers so that the plate 438 is angularly displaced a different amount vfor each totalizer thereby serving to differentially stop the pin 436 and position the identifying numeral of the totalizer in the printing line.

I claim:

- l. In a business machine, a plural order keyboard, selecting mechanism settable thereby, a

Y by upon operation of said actuating means the" unidirectionally rotatable cyclic actuating themas-,z` plural order drive transmitting means associated L with said actuating means and being differentially drivable thereby according to the setting of said selecting mechanism by said keyboard, a

said rotatable members, and said motion transmitting means drives the type in the printing mechanism to set them to the value set in the keyboard, and means operable by said actuating means for disconnecting said motion transmit- .ting means after the type has been set to the" value to thereby interrupt the drive from said:

members to said printing mechanism.

2. In a business machine, a plura1 order keyboard, selecting mechanism settable thereby, a unidirectionally rotatable cyclic actuating means, a plural order register, means for transmitting drive differentially from said actuating means to said register for entering therein a value corresponding to the setting of said selecting mechanism, a member for each order of said keyboardl operatively connected to said drive transmitting means to thereby be rotated in each cycle of said actuating means a differential amount corresponding to the setting of said selecting mechanism, printing mechanism including a set of 0' to "9 type for each of said members, motion transmitting means intermediate each member and its set of type, whereby upon operation of said actuating means said value is entered in the register and the type in the printing mechanism are set to the value set in the keyboard, and

means operated by said actuating means for disconnecting said motion transmitting means after' each order of said keyboard rotated in each cycle. of said actuating means a differential amount corresponding to the setting of said selecting mechanism during the digitation phase of the cycle and additional increments during the transfer phase of the cycle, printing mechanism including a set of 0 to 9 type for each of said members, and motion transmitting means intermediate each member and its set of type, wheretype in the printing mechanism are set to the value set in the keyboard, and means operated` drive differentially from said actuating means to said register for entering therein a value corresponding to the setting of said selecting mechanism, a member for each order of said key-f board operatively connected to said drive transmitting meansto thereby be rotated in each cycle of said actuating means aA differential amount` corresponding to the setting of said selecting mechanism, printing mechanism including a set of to 9 type for each of said members, motion transmitting means intermediate each member and its set of type, whereby upon operation of said actuating means said value is entered in the register and the type in the printing mechanism are set to the value set in the keyboard, means operated by said actuating means for disconnecting said motion transmitting means after the type has been set to the value and before the end of the cycle, and means operated by said actuating means during a remaining por-tion of the cycle for effecting printing by the set types.

5. In a business machine, a plural order keyboard, selecting mechanism settable thereby, a unidirectionally rotatable cyclic actuating means, plural order drive transmitting means associated with said actuating means and being diiierentially drivable thereby according to the setting of the selecting mechanism by said keyboard, a member operatively connected to each order of said drive transmitting means and being rotatable cyclically thereby a differential amount corresponding to the setting of said selecting mechanism, printing mechanism including a set of "0 to "9 type for each of said members, locking means normally holding said sets of type in inactive positions, means operable by said actuating means during an initial port oi" a cycle thereof for disabling said locking means, motion transmitting means intermediate each member and its set of type, whereby operation of said actuating means, said drive transmitting means, said rotatable members, and said motion transmitting means drives the type in the printing mechanism to set them to the value set in the keyboard, and means operable by said actuating means for disconnecting said motion transmitting means after the type has been set to the value to thereby interrupt the drive from said members to said printing mechanism.

6. In a business machine, a plural order keyboard, selecting mechanism settable thereby, a unidirectionally rotatable cyclic actuating means, plural order drive transmitting means associated with said actuating means and being differentially drivable thereby according to the setting of the selecting mechanism by said keyboard, a member operatively connected to each order of said drive transmitting means and being retable cyclically thereby a differential amount corresponding to the setting of said selecting mechanisms, printing mechanism including a set of 0" to 9 type for each of said members, motion transmitting means intermediate each member and its set of type, whereby operation of said actuating means, said drive transmitting means, said rotatable members, and said motion transmitting means drives the types in the printing mechanism to set them to the value set in the keyboard, normally inactive means for locking said types in the positions to which they have been set, means operable by said actuating means after the types have been set to the values for disconnecting said motion transmitting means and for activating said locking means, and means for then effecting printing by the set and locked types.

'7. In a business machine, a plural order keyboard, selecting mechanism settable thereby a unidirectionally rotatable cyclic actuating means, plural order drive transmitting means associated with said actuating means and being differentially drivable thereby according to the setting of* the selecting mechanism by said keyboard, a member operatively connected to each yorder Vof said drive transmitting means and being rotatable cyclically thereby a differential amount corresponding to the setting of said selecting mechanism, printing mechanism including a set of 0 to 9 type for each of said members, locking means normally holding said sets of type in inactive positions, means operable by said actuating means during an initial part of a cycle thereof for disabling said locking means, motion transmitting means Aintermediate each member and its set of type, whereby operation of said actuating means, said drive transmitting means, said rotatable members, and said motion transmitting means drives the type in the printing mechanism to set them to the value set in the keyboard, normally inactive means for locking the types in the positions to which they have been set, means operable by said actuating means after the types have been set to the value for disconnecting said motion transmitting means and for activating said normally inactive locking means, and means for Ythen effecting printing by the set and `lockedsaid register for entering therein a value corre- 4 sponding to the setting of said selecting mechanism, a member for each order of said keyboard operatively connected to saiddrive transmitting means to thereby be rotated in each cycle of said actuating means a differential amount corre.- sponding to the setting of said selecting mechanism, printing mechanism including a set of 0 to "9 type for each of said members, motion transmitting means intermediate each member and its set of type, whereby upon operation of said actuating means said value is entered in the register and the type in the printing mechanism are set to the value set in the keyboard, means operated by said actuating means for disconnecting said motion transmitting means after the type have been set to the value and before the end of the cycle, means associated with the lowest order set of type and operable by said actuating means during a remaining portion of the cycle for effecting printing in said lowest order irrespective of the type value set therein, and means associated with higher order sets of type and being operable by said actuating means during said remaining portion of the cycle for aiecting printing only in the highest order in which a significant type gure has been set and in orders lower than said highest order.

9. In a business machine, a plurality of plural order totalizers, a plural order keyboard, a unidirectionally rotatable cyclic actuating means, means for transmitting drive differentially from said actuating means to a selected one of said totalizers for entering therein a value corresponding to the setting of said selecting mechanism, means for selecting the totalizer in which the value is to be entered, a member for each order of said keyboard operatively connected to said drive transmitting means to thereby be rotated in each cycle of said actuating means a differential amount corresponding to the setting of said selecting mechanism, value printing mechanism including a set of 0 to 9 types for each of said members, motion transmitting means in. 

